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Winbond Electronics Corporation W25X40CLZPIG TR
- Part No.:
- W25X40CLZPIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25X40CLZPIG TR.pdf
- Description:
- IC FLASH 4MBIT SPI 104MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
W25X40CLZPIG TR from Winbond is a 4 M-bit (512 KB) serial flash memory IC supporting standard SPI, dual-output SPI, and dual I/O SPI interfaces. It features uniform 4 KB sectors, 32 KB blocks, and 64 KB blocks; operates from 2.3 V to 3.6 V; delivers up to 208 Mbps effective data transfer via Fast Read Dual I/O (BBh); and is rated for -40°C to +85°C. It is used in embedded boot code storage, firmware update storage, and parameter retention in space-constrained IoT edge nodes.
For engineers reviewing the W25X40CLZPIG TR datasheet, W25X40CLZPIG TR pinout, W25X40CLZPIG TR application, or W25X40CLZPIG TR equivalent, key selection considerations include its 8-pin WSON 6×5 mm package (ZP), 104 MHz max SPI clock, hardware /WP and /HOLD control, 4 KB sector granularity for fine-grained updates, and JEDEC-compliant device identification (Manufacturer ID EFh, Device ID 12h).
Technical Context
The W25X40CLZPIG TR implements a SPI-compatible command interface with support for Mode 0 and Mode 3 clock polarity/phasing. Its internal architecture includes a 256-byte page buffer, status register with non-volatile BP2–BP0 and TB bits, and high-voltage generators enabling erase/program without external voltage pumps.
It supports three distinct read modes: Standard Read (03h), Fast Read (0Bh) with 8 dummy cycles, and dual-I/O Fast Read (BBh) using IO0/IO1 bidirectionally at up to 104 MHz - achieving 208 Mbps throughput. Erase operations are segmented into 4 KB sectors (128 total), 32 KB blocks (16), and 64 KB blocks (8), all with guaranteed >100,000 program/erase cycles and >20-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 M-bit (512 KB), organized as 2048 × 256-byte pages |
| Supply Voltage | 2.3 V to 3.6 V - enables direct interfacing with 2.5 V/3.3 V logic without level shifters |
| Max SPI Clock | 104 MHz - supports 208 Mbps effective bandwidth in Dual I/O mode (BBh) |
| Erase Granularity | Uniform 4 KB sectors (128), 32 KB blocks (16), 64 KB blocks (8) - enables flexible firmware partitioning |
| Write Endurance | ≥100,000 program/erase cycles per sector - suitable for field-updatable firmware with frequent minor patches |
| Data Retention | ≥20 years at +85°C - meets industrial lifecycle requirements for unattended deployments |
| Operating Temp | -40°C to +85°C - qualified for extended-temperature industrial and automotive cabin applications |
| Active Current | 1 mA typical at 104 MHz - minimizes power budget impact during boot-time code fetch |
Pinout & Package
W25X40CLZPIG TR is packaged in an 8-pad WSON 6×5 mm (package code ZP), RoHS-compliant, moisture-sensitive level 3 device with exposed pad thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; must transition high→low after power-up before first instruction; controls DO high-impedance state |
| DO (IO1) | Bidirectional Data Output/Input | Serial data output in standard SPI; bidirectional I/O in Dual SPI (BBh/3Bh); shares pin function with IO1 |
| /WP | Hardware Write Protect Input | Active-low pin that, when asserted with SRP=1, locks Status Register writes - provides tamper-resistant configuration lock |
| GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-inductance connection to minimize noise on SPI lines |
| DI (IO0) | Bidirectional Data Input/Input | Serial data input in standard SPI; bidirectional I/O in Dual SPI (BBh/3Bh); shares pin function with IO0 |
| CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| /HOLD | Operation Pause Input | Active-low pause signal; suspends ongoing SPI transaction without resetting internal state - critical for multi-device bus sharing |
| VCC | Power Supply | 2.3–3.6 V main supply; internal voltage regulation enables stable operation across full range |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP (execute-in-place) with only 16 clocks overhead to address 24-bit memory - eliminates need for large RAM buffers |
| Dual I/O SPI Interface | Uses IO0/IO1 bidirectionally for BBh instruction, doubling throughput vs. standard SPI - accelerates boot code shadowing |
| Flexible Hardware + Software Protection | Combines /WP pin, SRP bit, and BP2–BP0/TB bits to protect any 4 KB sector or contiguous region - prevents accidental firmware corruption |
| JEDEC ID & Unique Serial Number | Returns Manufacturer ID EFh, Device ID 12h via 9Fh/90h/92h; includes 64-bit factory-programmed UID - enables secure device authentication and traceability |
| Low-Power Power-down Mode | Enters <1 µA standby with B9h instruction - extends battery life in always-on sensor nodes between wake events |
| Auto-Write-Disable Safety | WEL bit clears automatically after Page Program, Sector Erase, or Write Status Register - prevents unintended subsequent writes |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
|
Use Scenario: Storing bootloader and application firmware in programmable logic controllers deployed in factory automation environments with ambient temperatures up to +70°C. IC Role / Device Role / Timing Role: Non-volatile code storage with fast sequential read access; serves as primary boot source for ARM Cortex-M7 microcontroller during cold start. Use Value: 4 KB sector erase enables over-the-air patching of individual firmware modules without full chip reflash - reducing downtime during maintenance windows. |
Use Scenario: Holding certified boot image and calibration parameters in portable ultrasound devices requiring FDA-grade data integrity and long-term reliability. IC Role / Device Role / Timing Role: Secure, tamper-resistant firmware repository; leverages /WP and SRP bits to lock critical boot sectors against runtime modification. Use Value: 20-year data retention and -40°C to +85°C qualification ensure firmware persistence across device lifetime and sterilization cycles. |
| Smart Meter Parameter Logging | Automotive Telematics Module |
|
Use Scenario: Recording time-stamped energy consumption data and tariff tables in ANSI C12.19-compliant electricity meters operating in outdoor enclosures. IC Role / Device Role / Timing Role: Parameter and event log storage; uses 4 KB sectors to isolate tariff schedules from usage logs for independent update and backup. Use Value: Uniform 4 KB erase granularity allows atomic updates of tariff tables without disrupting active logging - maintaining regulatory compliance during firmware upgrades. |
Use Scenario: Hosting GNSS firmware, cellular modem stack, and vehicle configuration profiles in LTE-connected telematics control units (TCUs) mounted in engine bays. IC Role / Device Role / Timing Role: High-reliability firmware storage with dual-I/O SPI interface to meet UNECE R155 cybersecurity requirements for secure boot. Use Value: 104 MHz Dual I/O read speed ensures sub-100 ms boot time for safety-critical TCU functions - meeting ISO 26262 ASIL-B timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q40EWZPIG | Same 4 M-bit density and WSON-8 (6×5 mm) package, but uses newer Quad SPI interface (supports QPI/DTR), higher 133 MHz clock, and enhanced security registers. | Supports faster quad-read commands (e.g., 6Bh) and hardware encryption key locking - suited for designs requiring secure firmware delivery. | Select W25Q40EWZPIG if migrating to Quad SPI infrastructure or requiring hardware-based secure boot; W25X40CLZPIG TR remains optimal for cost-sensitive legacy SPI-only designs. |
| Micron MT25QL04ABDV8ESF-0SIT | 4 M-bit Serial NOR in 8-pin SOIC (150-mil), not WSON; supports Dual/Quad SPI; 133 MHz max clock; includes SFDP for auto-configuration. | Requires PCB layout change (SOIC vs WSON); offers SFDP-based driver portability but lacks /HOLD pin - limits multi-device bus arbitration capability. | Choose MT25QL04ABDV8ESF-0SIT only if SOIC footprint is mandated and /HOLD functionality is unused; otherwise W25X40CLZPIG TR provides superior pin compatibility and bus-sharing flexibility. |
Compared with W25Q40EWZPIG and MT25QL04ABDV8ESF-0SIT, the W25X40CLZPIG TR delivers proven SPI/Dual I/O performance in a compact WSON package with full /HOLD and /WP support - making it ideal for cost-optimized, space-constrained industrial and medical designs where quad-SPI or SFDP are unnecessary.
Availability
W25X40CLZPIG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, smart meter parameter logging, and automotive telematics module applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25X40CLZPIG TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Winbond Electronics is a Taiwan-based semiconductor manufacturer specializing in specialty memory solutions, including serial NOR/NAND flash, RAM, and trusted computing components.
The W25X series was designed for cost-sensitive, space-constrained embedded systems requiring reliable code storage and fast sequential read access - targeting industrial control, consumer electronics, and medical instrumentation markets.
FAQ
What is the package type and footprint of the W25X40CLZPIG TR?
The W25X40CLZPIG TR uses an 8-pad WSON (6 mm × 5 mm) package with exposed thermal pad (package code ZP). It is RoHS-compliant, moisture-sensitive level 3, and compatible with standard reflow profiles. Pin 1 is marked by a dot or beveled corner; the footprint matches JEDEC MO-229 specification for WSON-8.
Does the W25X40CLZPIG TR support Quad SPI or only Dual SPI?
The W25X40CLZPIG TR supports Standard SPI and Dual SPI only - specifically Fast Read Dual Output (3Bh) and Fast Read Dual I/O (BBh). It does not support Quad SPI instructions (e.g., 6Bh or EBh) or QPI mode. For Quad SPI capability, consider the pin-compatible Winbond W25Q40EWZPIG.
How is hardware write protection implemented on the W25X40CLZPIG TR?
Hardware write protection on the W25X40CLZPIG TR uses the active-low /WP pin in conjunction with the Status Register Protect (SRP) bit. When SRP = 1 and /WP is low, writes to the Status Register (including BP2–BP0 and TB bits) are blocked. This prevents unauthorized changes to memory protection settings - a critical feature for certified firmware deployments.
What is the maximum clock frequency supported by the W25X40CLZPIG TR in Dual I/O mode?
The W25X40CLZPIG TR supports up to 104 MHz SPI clock frequency in Dual I/O mode (BBh instruction), delivering an effective 208 Mbps data rate. This is validated across the full -40°C to +85°C temperature range and 2.3 V to 3.6 V supply voltage, per AC Electrical Characteristics Table 9.6 in the official datasheet.
Can the W25X40CLZPIG TR be used for Execute-in-Place (XIP) applications?
Yes - the W25X40CLZPIG TR supports true XIP via its Continuous Read Mode, which reduces instruction overhead to just 16 clock cycles for addressing. This enables microcontrollers to execute code directly from flash without loading into RAM, reducing system memory requirements and boot latency in resource-constrained designs.
W25X40CLZPIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 800µs
- Access Time:
- -
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
W25X40CLZPIG TR FAQ
1.How can I place an order for W25X40CLZPIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25X40CLZPIG TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for W25X40CLZPIG TR reliable?
The price and inventory of W25X40CLZPIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25X40CLZPIG TR is usually 5 days.
3.What payment methods are accepted for W25X40CLZPIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25X40CLZPIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25X40CLZPIG TR?
W25X40CLZPIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25X40CLZPIG TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for W25X40CLZPIG TR?
For technical support, including W25X40CLZPIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25X40CLZPIG TR requirements.
6.How does Aetrix verify that W25X40CLZPIG TR is sourced from the original manufacturer or authorized distributors?
All W25X40CLZPIG TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that W25X40CLZPIG TR meets industry standards.
7.What is the process for return or replacement of W25X40CLZPIG TR?
All W25X40CLZPIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25X40CLZPIG TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The W25X40CLZPIG TR part is unused and in its original packaging.
Return procedure for W25X40CLZPIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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